浅论东海盆地海礁凸起的含油气性

勘探资料证实 ,西湖凹陷内生成的油气由生烃深凹向西部和南部的古斜坡带运移。凹陷内的局部构造大多形成于中新世末期的龙井运动 幕 ,圈闭形成期晚于油气主运移期 ,致使油气运移到比斜坡带更高的海礁凸起上保存或散失了。作者利用现有东海地震资料及西湖凹陷钻井、测井及油气资源评价结果从油气运移、聚集、保存等方面探讨东海陆架盆地海礁凸起油气勘探的良好前景

Discussion on the Hydrocarbon Potential in Haijiao Uplift of the East China Sea Basin

The exploration data approve that the hydrocarbon in the Xihu Depression migrated from the deep depression of hydrocarbon-generating to the west and south parts of the ancient slope. The most of the local structures discovered in the depression were formed in the 2nd Episode of the Longjing Movement, and the formed traps stage is later than the oil-gas migration peak-stage, causing oil-gas to migrate into the Haijiao Uplift, which is higher than the slope zone, and it was preserved or escaped. The good prospects of hydrocarbon exploration in the East China Sea Shelf Basin are discussed from the migration accumulation and preservation etc of hydrocarbon in the Haijiao uplift in this paper.